Did adding a request handler to /update fix your issue?
I added some docs to: http://wiki.apache.org/solr/Solrj And a warning message to the deprecated SolrUpdateServlet: http://svn.apache.org/viewvc?view=rev&revision=612896 ryan Keene, David wrote:
Running under tomcat 5.5.23Sending the following command (productId is my document primary key):